4013428 has 12 divisors (see below), whose sum is σ = 7436772. Its totient is φ = 1888640.

The previous prime is 4013423. The next prime is 4013441. The reversal of 4013428 is 8243104.

It can be written as a sum of positive squares in 2 ways, for example, as 2196324 + 1817104 = 1482^2 + 1348^2 .

It is a super-2 number, since 2×4013428² = 32215208622368, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4013399 and 4013408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4013423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29443 + ... + 29578.

It is an arithmetic number, because the mean of its divisors is an integer number (619731).

Almost surely, 2^4013428 is an apocalyptic number.

It is an amenable number.

4013428 is a deficient number, since it is larger than the sum of its proper divisors (3423344).

4013428 is a wasteful number, since it uses less digits than its factorization.

4013428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59042 (or 59040 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 4013428 is about 2003.3541873568. The cubic root of 4013428 is about 158.9175369762.

The spelling of 4013428 in words is "four million, thirteen thousand, four hundred twenty-eight".